Air-valve.



H. A. FITZPATRICK.

AIR VALVE.

'APPLICATION HLBD MAY 27,1907,

Patented Dec. 21, 1909.

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HUGH A. FITZPATRICK, 0F CHICAGO, ILLINOIS.

AIR-VALVE.

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Specification of Letters Patent.

Patented Dec. 21, 1909.

Application filed May 27, 1907. Serial No. 375,802.

To all whom it may concern:

Be it known that'l, 11mm A. Fra/.nvrnicii, a citizenof the United States, residing at T90 lVest Thirty-seventh street, in the city of Chicago, county of Cook, and State of Illinois, have invented certain useful Improvements in Air-Valves, of which the following is a specilieation.

My invention relates to valves and has particular reference to air valves.

The object of my .invention is to provide a simple and efiicient combined valve and coupling for air pipes wherein the valve is automatically opened or closed as a hose pipe is attached to or detached therefrom. f

My invention will be more fully undcrstood by reference to the accompanying drawings forming a part of this speciiication' and in which',

Figure 1 is a sectional view oi a valve casingl and hose coupling, equipped with a valve and valve operating device embodying my invention. Fig. 2 is an elevation of a portion of thesame, illustrating the locking device. Fig. 3 is' a section upon the line 3-3 oit Fig. 2. Fig. 4 is a detail illustrating a modiiied form ot' air valve and Fig. 5 is a cross section upon the 'line 5 5 of Fig. 2 showing a slight modification.

Referring to the drawings, l indicates a valve casing. This is substantially spherical and is provided with the extending portions, 2 and 3 by which it is attached to the air pipeand a hose coupling, respectively. Thc portion, 2 yis internally threaded as at 4 to receive the air pipe, 5. lVithin the valve casing, 1, is a valve seat, 6, :tor the valve, 7.

As shown in Fig. 1, the valve consists ot" a conical metallic member, mounted upon the end of a valve stein, 8. 9 indicates a bearing for the valve stein arranged within the portion, 3. The valve stem is quite long and is provided with a collar, 10, between ywhich andthe bearing, 9, is arranged a spring, 11, which tends to keep the valve, 7, closed. The portion, 3 is cylindrical and is provided upon its outer face with cam fianges,12, by which the hose coupling is 4attached thereto.

The coupling proper, which is attached to the end of a hose, 13, comprises a cylindrical hose attaching portion, 14 and a disk portion, 15. The disk portion, in, is provided with a seat, 1G, to receive the end of the portion, 3 of the valve casing, andl a washer or gasket, 17, is provided to make an air tightjoin't therebetween. Upon each side ol" the disk portion, 15, is a lug, 18, provided with a notch or groove, 19 to receive the cam flange upon the cylindrical p0rtion, 3. These cam flanges may be short as shown in Figs. l and 2, or they may extend nearly around the cylindrical portion, 3, as shown in Fig. 5, leaving but space enough for the passage of the lugs, 18.

Within the cylindrical portion, 14, of the hose coupling, I arrange a perforated partition or spider, and upon this provide a lug or pin, 20. As the coupling is screwed upon the depending portion, 3 of the valve casing, the pin, 20 engages the end of the rod, 8, shoving the' same upwardly, opening the valve. When thehose is disconnected either accidentally or purposely, the spring, quickly seats the valve, 7, preventing the escape of air.

In Fig. fl I have illustrated a modified form ot valve which comprises a pair of disks of dill'erent diameters arranged upon the end of the rod, 8 and clamping a gasket between them. 21 indicates the upper or larger disk and 22 the lower or smaller one. These are formed as shown and clamp between them the gasket, .23, which seats upon the plan valve, seat, 211.

The construction of the rest'of the valve casing and the hose coupling, together with its operation, are the same as 1n the afore v described modification.

Having described my invention, what I claim as new andl desire to secure by Letters Patent is,

In a device of the class described, a spherical valve casing having a valve seatformed in the walls thereof, and provided'with cy lindrical extensions arranged upon opposite sides and in axial lalinement, one ot' said portions being internally threaded and the other extension being elongated and pro- Washer in said recess, a pair of lugs extending upwardly a considerable distance from sald disk forming guides for said extension and having grooves near the outer ends to receive said cam-fianges, said lugs below said grooves fitting snugiy against the sides of said elongated extension and a pin ixedly arranged within the cylindrical portion of the hose coupling and extending 10 above said disk portion to engage the end of the valve stem as the' device is coupled, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HUGH A. FITZPATRICK.

Witnesses:

FRANCES E. SHEEHY, H. S. AUSTIN. 

